Mike and Tom are of the same height.为什么要加of,直接Mike and Tom are the same height.不就行了

题目

Mike and Tom are of the same height.为什么要加of,直接Mike and Tom are the same height.不就行了

答案

这是一个语法点：be of + n.,例如：It is of importance = It is important.
句中height(身高)是名词,be （are）动词后不能直接加名词,但有了of就可以加名词（参照上例）,所以,不能省略of.
除非,把are改为have,那就可以去掉of,如：Mike and Tom have the same height.